20300305516 has 24 divisors (see below), whose sum is σ = 36035707680. Its totient is φ = 10004467200.

The previous prime is 20300305507. The next prime is 20300305541. The reversal of 20300305516 is 61550300302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386876 + ... + 1401436.

It is an arithmetic number, because the mean of its divisors is an integer number (1501487820).

Almost surely, 2^20300305516 is an apocalyptic number.

It is an amenable number.

20300305516 is a deficient number, since it is larger than the sum of its proper divisors (15735402164).

20300305516 is a wasteful number, since it uses less digits than its factorization.

20300305516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19545 (or 19543 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 20300305516 its reverse (61550300302), we get a palindrome (81850605818).

The spelling of 20300305516 in words is "twenty billion, three hundred million, three hundred five thousand, five hundred sixteen".